ADVERTISEMENT FEATURE
Enhance your products’ abrasion resistance with LUBMER™
Mitsui Chemicals’ LUBMER™ is a unique pellet-format product unlike other UHMW-PE polymer. This easy-to-handle additive can provide an effective alternative to PTFE as a friction and abrasion wear modifier for sliding engineering applications in a broad range of polymers without compromising mechanical and physical properties
Friction and wear are two challenges engineers frequently encounter when applying plastics in demand sliding applications. Additives such as polytetrafluoroethylene (PTFE) have been widely used to reduce friction coefficient and abrasion loss in plastic wear components, but recent studies have linked exposure to one of the critical ingredients in PTFE, perfluorooctanoic acid (PFOA), to a variety of health issues including cancer, high cholesterol, and hypertension. Following agreement at the UN’s
Stockholm Convention on Persistent Organic Pollutants in 2019 to ban the use of PFOA and some related compounds, the EU took the first steps to implement this commitment through its REACH system in 2020. As a consequence, formulators are looking for PTFE alternatives that can match or better its sliding and abrasion performance while retaining the mechanical strength and other essential physical properties of the polymer material. One alternative is ultra-high-molecular-
weight polyethylene (UHMW-PE). With a molecular mass in the range 2 to 6 million amu, UHMW-PE is a very tough material with outstanding impact strength, a low coefficient of friction, high abrasion resistance, and extremely good chemical resistance. LUBMER™ UHMW-PE, developed by Mitsui Chemicals using its proprietary polymerisation technology, can be used as a substitute for PTFE in engineering plastics including polyamide (PA6), polyacetal (POM), polybutylene terephthalate (PBT), polycarbonate (PC), polyphenylene sulphide (PPS) and acrylonitrile butadiene styrene (ABS), among other materials. Used as a tribology modifier, LUBMER™
offers: improved abrasion resistance; decreased coefficient of friction; and retention of mechanical properties. Trials using LUBMER™ LY1040 in PA6 at addition rates of 5% and 10% show it is highly effective at reducing coefficient of friction and abrasion loss in ring on disc
Figure 1: comparison of abrasion loss of virgin PA6 and with PA6 containing additives LUBMER LY1040 & PTFE, Figure 2 comparison of coefficient of kinetic friction of different polymer materials containing LUBMER LY1040 and PTFE additive (data from ring on disc tests: temperature 23°C, S45C ring, 0.75MPa load, speed 30 m/min, 3km distance).
tests (see Figures 1 and 2). Test results show that an addition of just 5% LUBMER™ LY1040 to PA6 results in an abrasion loss a factor of 10 lower when compared to that of a PA6 with 10% PTFE. Physical tests show that LUBMER™ LY1040 improves impact strength of the PA6, does not change the flexural
modulus, and results in only a small variation in tensile strength. With its ability to provide better sliding
properties than PTFE and molybdenum disulfide at lower additive dosage, LUBMER™ can help manufacturers prepare themselves for the new regulations restricting use of PFOA.
For more information CLICK HERE
https://eu.mitsuichemicals.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100
